
// import { BundleAnalyzerPlugin } from 'webpack-bundle-analyzer'
// import CompressionPlugin from 'compression-webpack-plugin'
// eslint-disable-next-line @typescript-eslint/no-var-requires
const path = require('path')
// eslint-disable-next-line @typescript-eslint/no-var-requires
// const CompressionPlugin = require('compression-webpack-plugin')
// eslint-disable-next-line @typescript-eslint/no-var-requires
// const BundleAnalyzerPlugin = require('webpack-bundle-analyzer').BundleAnalyzerPlugin
// const defaultSettings = require('./src/settings.js')

function resolve (dir) {
  return path.join(__dirname, dir)
}

const name = 'vue Element Admin' // page title

// If your port is set to 80,
// use administrator privileges to execute the command line.
// For example, Mac: sudo npm run
// You can change the port by the following method:
// port = 9527 npm run dev OR npm run dev --port = 9527
const port = process.env.port || process.env.npm_config_port || 9527 // dev port

// All configuration item explanations can be find in https://cli.vuejs.org/config/
module.exports = {
  /**
   * You will need to set publicPath if you plan to deploy your site under a sub path,
   * for example GitHub Pages. If you plan to deploy your site to https://foo.github.io/bar/,
   * then publicPath should be set to "/bar/".
   * In most cases please use '/' !!!
   * Detail: https://cli.vuejs.org/config/#publicpath
   */
  publicPath: '/',
  outputDir: 'dist',
  assetsDir: 'static',
  lintOnSave: process.env.NODE_ENV === 'development',
  productionSourceMap: false,
  devServer: {
    port: port,
    open: true,
    overlay: {
      warnings: false,
      errors: true,
    },
    proxy: {
      [process.env.VUE_APP_BASE_API]: {
        // target: 'http://121.15.210.7:8092',
        // target:'https://newmobileapptest.cgnpc.com.cn/',
        // target:"https://newmobileapp.cgnpc.com.cn/",
        target: 'http://127.0.0.1:8000/',
        changeOrigin: true,
        pathRewrite: {
          ['^' + process.env.VUE_APP_BASE_API]: '', // rewrite path
        },
      },

    },
  },
  configureWebpack: {
    // provide the app's title in webpack's name field, so that
    // it can be accessed in index.html to inject the correct title.
    name: name,
    resolve: {
      alias: {
        '@': resolve('src'),
      },
    },
    plugins: [
      // new BundleAnalyzerPlugin({
      //   analyzerMode: 'disabled',
      //   generateStatsFile: true,
      //   statsOptions: { source: false },
      // }),
      // new CompressionPlugin({
      //   threshold: 0,
      //   minRatio: 0.6,
      //   test: /\.(css|js)/i,
      //   algorithm: 'gzip',
      // }),

    ],
  },
  chainWebpack (config) {
    // it can improve the speed of the first screen, it is recommended to turn on preload
    // it can improve the speed of the first screen, it is recommended to turn on preload
    config.plugin('preload').tap(() => [{
      rel: 'preload',
      // to ignore runtime.js
      // https://github.com/vuejs/vue-cli/blob/dev/packages/@vue/cli-service/lib/config/app.js#L171
      fileBlacklist: [/\.map$/, /hot-update\.js$/, /runtime\..*\.js$/],
      include: 'initial',
    }])

    // when there are many pages, it will cause too many meaningless requests
    config.plugins.delete('prefetch')

    // set svg-sprite-loader
    config.module
      .rule('svg')
      .exclude.add(resolve('src/icons'))
      .end()
    config.module
      .rule('icons')
      .test(/\.svg$/)
      .include.add(resolve('src/icons'))
      .end()
      .use('svg-sprite-loader')
      .loader('svg-sprite-loader')
      .options({
        symbolId: 'icon-[name]',
      })
      .end()
    // config.module
    //   .rule('less')
    //   .use('less-loader')
    //   .loader('less-loader')
    //   .options({
    //     lessOptions: {
    //       /** less-loader 配置 */
    //       strictMath: true,
    //       noIeCompat: true
    //     }
    //   })
    config
      .when(process.env.NODE_ENV !== 'development',
        config => {
          config
            .plugin('BundleAnalyzerPlugin')
            // eslint-disable-next-line @typescript-eslint/no-var-requires
            .use(require('webpack-bundle-analyzer').BundleAnalyzerPlugin, [{
              analyzerMode: 'disabled',
              generateStatsFile: true,
              statsOptions: { source: false },
            }])
            .end()
          // config
          //   .plugin('CompressionPlugin')
          //   // eslint-disable-next-line @typescript-eslint/no-var-requires
          //   .use(require('compression-webpack-plugin'), [{
          //     threshold: 0,
          //     minRatio: 0.6,
          //     test: /\.(css|js)/i,
          //     algorithm: 'gzip',
          //   }])
          //   .end()
          config
            .plugin('ScriptExtHtmlWebpackPlugin')
            .after('html')
            .use('script-ext-html-webpack-plugin', [{
              // `runtime` must same as runtimeChunk name. default is `runtime`
              inline: /runtime\..*\.js$/,
            }])
            .end()
          config
            .optimization.splitChunks({
              chunks: 'all',
              cacheGroups: {
                libs: {
                  name: 'chunk-libs',
                  test: /[\\/]node_modules[\\/]/,
                  priority: 10,
                  chunks: 'initial', // only package third parties that are initially dependent
                },
                elementUI: {
                  name: 'chunk-element-plus', // split elementUI into a single package
                  priority: 20, // the weight needs to be larger than libs and app or it will be packaged into libs or app
                  test: /[\\/]node_modules[\\/]_?element-plus(.*)/, // in order to adapt to cnpm
                },
                commons: {
                  name: 'chunk-commons',
                  test: resolve('src/components'), // can customize your rules
                  minChunks: 3, //  minimum common number
                  priority: 5,
                  reuseExistingChunk: true,
                },
              },
            })
          // https:// webpack.js.org/configuration/optimization/#optimizationruntimechunk
          config.optimization.runtimeChunk('single')
        },
      )
  },
}
